"Climb the mountain not to plant your flag, but to embrace the challenge, enjoy the air and behold the view. Climb it so you can see the world, not so the world can see you."

These lines are my favourites because I really do believe that you should do what is right for yourself in life, not because of how it will be perceived by others. If you want to volunteer, do it because you want to volunteer, not because you think you should. If you want to become a doctor or engineer, fantastic, go for it. But do it because that's what you want, not because those are the graduate jobs that are most respected. It isn't up to everyone else to decide what's worthwhile, that's a decision only you have the right to make for yourself.

Of course, anyone chasing any dream needs to keep a sense of reality, so some of the speech could be said to be idealistic. But to be perfectly honest, any inspirational advice tends to be idealistic. That doesn't mean that there's no merit in it, nothing to be taken away.